Inside the Infinite Castle.
Boom! Boom! Boom!
Chiyo was sent flying like a cannonball. She smashed through several walls and crashed through multiple buildings before finally managing to stop herself.
"Chiyo!" Ryūsetsuna cried.
"Don't get distracted!" Yakumo shouted.
Whoosh!
Before her words had even faded, Tanjiro flashed in front of Ryūsetsuna and brought down the Nichirin Blade in his hand.
Ryūsetsuna reacted at once, raising the Kunai in her hand to block.
Clang!
A piercing clash of metal rang out across the entire street!
Then the Nichirin Blade in Tanjiro's hand suddenly turned crimson. With a sharp crack, the Kunai Ryūsetsuna had raised to block snapped in two, and Tanjiro's blade came slashing down.
"How could this be?!"
Though her heart pounded with fear, Ryūsetsuna had already activated the Twelve Palaces and managed to react, quickly retreating.
Swish.
The sword's shadow swept past, bringing with it a spray of blood.
"Hah... hah..."
Ryūsetsuna panted heavily. She glanced down at her chest, where a shallow sword mark was clearly visible, and shuddered at what might have happened.
If she'd been even half a beat slower, her entire body might have been cut in two.
Yakumo was panting as well.
Not much time had passed since they arrived on the battlefield, but those few short moments felt unbearably long.
The strength of the "Upper Moon One" before them was beyond anything they could have imagined.
His speed, strength, and reflexes were all at the pinnacle of the Shinobi World. Yakumo even had the vague sense that he possessed some kind of eye technique that let him see through their movements.
Yakumo's guess was right. Tanjiro's mastery of the Breathing Technique rivaled Yoriichi Tsugikuni's. He had not only awakened the Curse Mark, but also mastered the Clear World, the highest level of the